Objective: Students will be able to identify the common allergens and describe the physical symptoms of an allergic reaction. Materials: - Examples of common allergens - Presentation slides with images - Copies of worksheets for each student Time Needed: 45 minutes Procedure: 1. Introduction (5 minutes): Ask students what they already know about allergies. 2. Presentation (15 minutes): Introduce the common allergens, such as pollen, dust mites, pet dander, and certain foods. Use presentation slides with images to help students understand the concept. 3. Activity (15 minutes): Distribute worksheets to each student. Ask them to identify the allergens and describe the physical symptoms of an allergic reaction. 4. Discussion (10 minutes): Discuss the answers and ask the students to explain the physical symptoms of an allergic reaction. 5. Summary (5 minutes): Summarize the key points of the lesson and ask the students to answer one more question related to allergies.